Figure 4: Dimensions for trapping a negative pressure system
Note:
A = (2 inches) + 1 inch B = A/2 C = A + B + 3/4 inches = 5-1/4 inches
Ductwork
When installing ductwork, adhere to local codes. Where possible, minimize duct runs and avoid
abrupt changes in direction. Allow ample access space to service the coils and change the filters.
Perform regular maintenance on the ducts to increase the unit life, maintain efficient operation,
and reduce the accumulation of dust and debris.
To not exceed the maximum external static values, refer to blower performance charts in
, engineer duct runs, and accessory pressure drop. Ensure continuous running of
the condenser intake ambient air temperature does not exceed 115.0°F. The condenser exhaust
discharges into an open area to prevent the short cycling of hot exhaust condenser air with the
condenser intake.
Air temperature sensors
Figure 5: RAT SAT sensor
D-Series Vertical (DSV060C-300C) Air-Cooled Self-Contained Units, C Generation with Smart Equipment Controller
16
Johnson Controls
